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Effects of a nearby Mn delta layer on the optical properties of an InGaAs/GaAs quantum well.
- Source :
-
Journal of Applied Physics . 2014, Vol. 116 Issue 20, p203501-1-203501-6. 6p. 1 Chart, 5 Graphs. - Publication Year :
- 2014
-
Abstract
- We investigated the effects of nearby Mn ions on the confined states of a InGaAs/GaAs quantum well through circularly polarized and magneto-optical measurements. The addition of a Mn delta-doping layer at the barrier close to the well gives rise to surprisingly narrow absorption peaks in the photoluminescence excitation spectra. The peaks become increasingly stronger for decreasing spacer-layer thicknesses between the quantum well and the Mn layer. Most of the peaks were identified based on self-consistent calculations; however, we observed additional peaks that cannot be identified with quantum well transitions, which origin we attribute to an enhanced exciton-phonon coupling. Finally, we discuss possible effects related to the exciton magneto-polaron complex in the reinforcement of the photoluminescence excitation peaks. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 116
- Issue :
- 20
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 99686600
- Full Text :
- https://doi.org/10.1063/1.4902857